136169 has 4 divisors (see below), whose sum is σ = 148560. Its totient is φ = 123780.

The previous prime is 136163. The next prime is 136177. The reversal of 136169 is 961631.

136169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961631 = 11 ⋅87421.

It is a cyclic number.

It is not a de Polignac number, because 136169 - 2⁸ = 135913 is a prime.

It is a super-2 number, since 2×136169² = 37083993122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6179 + ... + 6200.

It is an arithmetic number, because the mean of its divisors is an integer number (37140).

2¹³⁶¹⁶⁹ is an apocalyptic number.

It is an amenable number.

136169 is a deficient number, since it is larger than the sum of its proper divisors (12391).

136169 is a wasteful number, since it uses less digits than its factorization.

136169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12390.

The product of its digits is 972, while the sum is 26.

The square root of 136169 is about 369.0108399492. The cubic root of 136169 is about 51.4469242993.

The spelling of 136169 in words is "one hundred thirty-six thousand, one hundred sixty-nine".